LT3500EMSE#PBF

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Analog Devices

MONOLITHIC 2A STEP-DOWN REGULATOR PLUS LINEAR REGULATOR/CONTROLLER

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LT3500EMSE#PBF

Active

Analog Devices

MONOLITHIC 2A STEP-DOWN REGULATOR PLUS LINEAR REGULATOR/CONTROLLER

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DocumentsDatasheet R530 Reliability Data

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT3500EMSE#PBF

Frequency - Switching [Max]	2.4 MHz
Frequency - Switching [Min]	500 kHz
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Package / Case	Exposed Pad, 16-TFSOP
Package / Case	3 mm, 0.118 in
Supplier Device Package	16-MSOP-EP
Topology	Step-Down (Buck) (1), Linear (LDO) (1)
Voltage - Supply [Max]	36 V
Voltage - Supply [Min]	3 V
Voltage/Current - Output 1	2 A
Voltage/Current - Output 1 [Max]	38.9 V
Voltage/Current - Output 1 [Min]	0.8 V
Voltage/Current - Output 2	13 mA
Voltage/Current - Output 2	Adjustable
w/LED Driver	False
w/Sequencer	False
w/Supervisor	False

LT3500 Series

Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller

Part	Voltage/Current - Output 2	Voltage/Current - Output 2	Mounting Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Topology	Number of Outputs	Frequency - Switching [Min]	Frequency - Switching [Max]	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Package / Case	Voltage/Current - Output 1 [Max]	Voltage/Current - Output 1	Voltage/Current - Output 1 [Min]
Analog Devices LT3500EMSE#PBF	13 mA	Adjustable	Surface Mount	36 V	3 V	Linear (LDO) (1) Step-Down (Buck) (1)	2	500 kHz	2.4 MHz	16-MSOP-EP	125 °C	-40 °C	16-TFSOP Exposed Pad	0.118 in 3 mm	38.9 V	2 A	0.8 V
Analog Devices LT3500IDD#TRPBF	13 mA	Adjustable	Surface Mount	36 V	3 V	Linear (LDO) (1) Step-Down (Buck) (1)	2	500 kHz	2.4 MHz	12-DFN (3x3)	125 °C	-40 °C	12-WFDFN Exposed Pad		38.9 V	2 A	0.8 V
Analog Devices LT3500HDD#PBF	13 mA	Adjustable	Surface Mount	36 V	3 V	Linear (LDO) (1) Step-Down (Buck) (1)	2	500 kHz	2.4 MHz	12-DFN (3x3)			12-WFDFN Exposed Pad		38.9 V	2 A	0.8 V
Analog Devices LT3500IDD#PBF	13 mA	Adjustable	Surface Mount	36 V	3 V	Linear (LDO) (1) Step-Down (Buck) (1)	2	500 kHz	2.4 MHz	12-DFN (3x3)	125 °C	-40 °C	12-WFDFN Exposed Pad		38.9 V	2 A	0.8 V
Analog Devices LT3500EDD#TRPBF	13 mA	Adjustable	Surface Mount	36 V	3 V	Linear (LDO) (1) Step-Down (Buck) (1)	2	500 kHz	2.4 MHz	12-DFN (3x3)	125 °C	-40 °C	12-WFDFN Exposed Pad		38.9 V	2 A	0.8 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 11.25
		10	$ 7.88
		25	$ 7.01
		100	$ 6.04
		250	$ 5.57
		500	$ 5.28
		1000	$ 5.04

Description

General part information

LT3500 Series

The LT3500 is a current mode PWM step-down DC/DC converter with an internal 2.3A switch. The wide input range of 3V to 40V makes the LT3500 suitable for regulating power from a wide variety of sources, including automotive batteries, 24V industrial supplies and unregulated wall adapters.Resistor-programmable 250kHz to 2.2MHz frequency range and synchronization capability enable optimization between efficiency and external component size. Cycle-by-cycle current limit, frequency foldback and thermal shutdown provide protection against a shorted output. The soft-start feature controls the ramp rate of the output voltage, eliminating input current surge during start-up, and also provides output tracking.The LT3500 contains an internal NPN transistor with feedback control which can be configured as a linear regulator or as a linear regulator controller.The LT3500’s low current shutdown mode (<12μA) enables easy power management in battery-powered systems.ApplicationsAutomotive Battery RegulationIndustrial ControlWall Transformer RegulationDistributed Power Regulation